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Brentwood City Commission Agenda

Meeting Date:	11/14/2016
Resolution 2016-78 - Acquisition of Right-of-Way and Easements to Construct a Roundabout at Crockett Road/Green Hill Boulevard/Raintree Parkway
Submitted by:	Mike Harris, Engineering
Department:	Engineering

Information

Subject

Resolution 2016-78 - Authorization for the Acquisition of Right-of-Way and Easements for Construction of a Roundabout at Crockett Road/Green Hill Boulevard/Raintree Parkway

Background

Improving traffic flow and reducing delays in Brentwood is a top priority for the City. One improvement project identified last year was the construction of a roundabout at the intersection of Crockett Road and Green Hill Boulevard. The existing four-way stop causes significant delays on Crockett Road during the morning and afternoon peak periods.

Staff asked Neel-Schaffer, Inc. to investigate the feasibility of constructing a roundabout at this location and to compare the expected operational performance to a traffic signal. The results indicate a signal and roundabout would perform similarly during peak periods, but the roundabout exhibited much improved performance over the signal during off-peak periods. Additionally, staff identified several more subjective advantages of a roundabout at this location, including:

Less right-of-way needs/impact to adjacent properties.
No light spill over to adjacent properties from the signals, especially when in flash mode at night.
Less noise compared to vehicles stopping/starting/idling at a signal.

Based on this evaluation, staff presented a contract with Neel-Schaffer for roundabout design services to the City Commission at its March 14, 2016 meeting. That design work has progressed to the point that the required right of way and easements have been determined. Therefore, staff is recommending City Commission provide formal authorization for the Mayor, City Manager and City Attorney to negotiate, acquire and condemn (if necessary) sufficient right-of-way and easements to allow this important project to move forward. Based on the design plans, acquisitions will include approximately 0.03 acres of ROW plus an additional 0.08 acres of construction easement.

There are only two property owners impacted by the project, one on the northwest corner and one on the northeast corner. A drawing depicting the ROW impact is attached, along with a layout drawing of the proposed roundabout.

It should be noted that one of the unique challenges of this project will be construction of the roundabout within the existing intersection while maintaining traffic flow. Detour options at this location are practically non-existent, so close coordination between the contractor and affected utilities will be important. Also, consideration will be given to allowing for some degree of night time work as well as a possible early completion bonus built into the contract.

The tentative schedule is for design work to be complete this fall with right-of-way acquisition occurring in winter 2016-2017. The target date to award a construction contract would be spring of 2017, with utility relocation work occurring in early 2017 and actual roundabout construction beginning spring of 2017 with a targeted completion by fall of 2017. Obviously, this schedule is subject to change as the design process moves along for this project. As much as possible, any short-term closures of the intersection will be performed while school is out of session to reduce traffic impacts.

With City Commission approval, staff will proceed with property appraisals and acquisition negotiations so the project can be bid and construction started.

Please contact the Public Works or Engineering Director with any questions.

Staff Recommendation

Staff recommends approval.

Previous Commission Action

A contract for professional design services for this project with Neel-Schaffer was approved by the Commission at the March 14, 2016 meeting pursuant to Resolution 2016-13.

Fiscal Impact

Amount :	$15,000
Source of Funds:	Capital Improvement Program
Account Number:	311-43100-1042

Fiscal Impact:

Funding is included in the approved FY 2017 Capital Projects Fund budget.

Attachments
Resolution 2016-78
Right of Way Exhibit
Roundabout Layout
Signed Resolution